Temperature Sensor Instruction Manual

1 TD-1002b Instruction Manual Temperature Sensor Instruction Manual OKAZAKI MANUFACTURING COMPANY Instruction Manual OKAZAKI MANUFACTURING COMPANY OKAZAKI MANUFACTURING COMPANY 1-3 GOKODORI 3-CHOME, CHUOU-KU, KOBE 651-0087, JAPAN PHONE : 078-251-8200 FAX : 078-251-8210 E-mail : Note : 1) All provisions are subject to change without any notice. 2) This Manual is prepared with the greatest possible care, but if any problems, please do not hesitate to contact us. Instruction Manual TD-1002b OKAZAKI MANUFACTURING COMPANY 1 Index CHAPTER 1 BEFORE TO USING 2 ATTENTION TO SAFETY 2 WHEN BREAK DOWN 5 CHAPTER 2 INTRODUCTION 6 CHAPTER 3 Temperature Sensor OVERVIEW 7

2 TYPES OF Temperature SENSORS 7 MEASUREMENT PRINCIPLE OF THERMOCOUPLE 7 TYPES OF THERMOCOUPLE 8 MEASUREMENT PRINCIPLE OF resistance THERMOMETER Sensor 8 TYPES OF resistance THERMOMETER Sensor 10 CHAPTER 4 PRIOR TO INSTALLATION 11 TO CHECK ITEMS AFTER UNPACKING 11 PRECAUTIONS FOR STORING THE Temperature Sensor 11 MEASUREMENT OF CONTINUITY 11 MEASUREMENT OF INSULATION resistance 12 PRECAUTIONS FOR DIELECTRIC STRENGTH TEST 13 CHAPTER 5 INSTALLATION 14

3 INSTALLATION PLACE 14 ACCURATE Temperature MEASUREMENT 14 PRECAUTIONS FOR CONNECTING THE EXTERNAL WIRING 15 CHAPTER 6 SAFETY USE 18 MAINTENANCE 18 MAINTENANCE AND INSPECTION 18 PERIODIC INSPECTION OF Temperature Sensor 20 CHAPTER 7 TROUBLESHOOTING 23 IDENTIFYING PROBLEMS 23

4 INSTRUMENT OR AMBIENT ENVIRONMENT. 23 TROUBLESHOOTING FOR resistance THERMOMETER SENSORS 24 CHAPTER 8 BASIC SPECIFICATIONS AND STRUCTURE OF Temperature SENSORS 25 PROTECTION TUBE TYPE Temperature SENSORS 25 SHEATHED Temperature Sensor 26 EXPLOSION-PROOF Temperature Sensor 27 LEAD WIRE TYPE Temperature Sensor 29 CHAPTER 9 REFERENCE MATERIAL

5 30 THERMOCOUPLE REFERENCE THERMO-ELECTROMOTIVE FORCE TABLE 30 COLOR CODES FOR COMPENSATING CABLES 33 TOLERANCE OF THERMOCOUPLES 34 resistance THERMOMETER Sensor REFERENCE resistance VALUE TABLE 35 resistance THERMOMETER Sensor TOLERANCES 35 MAJOR STANDARDS LIST 36 CHAPTER 10 CONTACT ADDRESS AND PHONE NUMBERS IN CASE OF TROUBLE 37 TD-1002b Instruction Manual OKAZAKI MANUFACTURING COMPANY 2 CHAPTER 1 BEFORE TO USING Attention to safety Before using this product, carefully read both this " Attention to Safety " and the " Instruction Manual ".

6 Only use the product after having well understood the proper method of operation. The safety warnings shown below are to prevent harm or injury to yourself and the people near you when operating the Temperature Sensor . The two labels below describe what will happen in the unlikely event of mistake being made during handling or operation of the Temperature . Even items bearing a "Caution" label may, under certain conditions, lead to serious injury. Always observe safety procedures. The terms "serious injury", "light injury", and "material damage" mentioned above have the following meanings. Term Meaning Serious Injury Long-term symptoms resulting as a result of loss of eyesight, injuries, burns (high & low Temperature ), electric shock, broken bones. Injuries will require a long period in hospital followed by repeated hospital visits.

7 Light Injury Injuries, burns (high & low Temperature ) or injuries from electric shocks which do not require a long hospital stay or repeated hospital visit. Material damage Direct and indirect losses associated with inventory loss, and damage to plant and equipment. INSTALLATION WARNING Do not connect lead cable of Temperature sensors directly to power supply terminals. Lead cable ( compensating lead cable or extension lead cable) of Temperature sensors must be connected to terminal of receiving instruments. If connected by mistake to power supply, Temperature becomes high that may cause a fire or an explosion. WARNING Do not handled Temperature Sensor roughly. There are heavy Temperature sensors because of their constructions. If they drop from installation point, it might cause damage to person.

8 resistance thermometers which have very fine platinum wires are extremely delicate, therefore, Temperature measurement error may be caused by damage. For Temperature sensors with ceramic insulators or protection tubes, special attention of these sensors are required because of their brittleness. WARNING Do not use Temperature sensors for hazardous locations in surrounding where Temperature is over 60 C. Temperature sensors for hazardous location are approved provided that they are used in surrounding where Temperature is below 60 C. Please specify the surrounding Temperature in location in order to make it safe. WARNING CAUTION If this device is improperly used, people may be severely injured or killed. If this device is improperly used, people may suffer light to medium injuries or material damage may occur.

9 Instruction Manual TD-1002b OKAZAKI MANUFACTURING COMPANY 3 WARNING Make sure of closing a cover of terminal head after wiring. After wiring , if O ring is supplied, then make sure O ring is installed properly in cover of terminal head before installing the cover. This will prevent dust or rain entering terminal head. This is specially important for explosion proof terminal head, close the cover with a rated jig. For general type terminal head, use a screw driver shown below. For closing, turn the cover clockwise by hand and then tighten it 1/6~1/4 clockwise with jigs. The Temperature sensors nay not display correct Temperature due to presence of dust or rain. CAUTION Make sure of mounting with screws or flanges. Installation of Temperature sensors will be done with screws or flanges.

10 In case of screwing, apply sealing tape or sealing agent for tapered thread, and O-ring gasket for parallel thread, and then tighten with spanner. For flange connection, use specified gasket and tighten all bolts equally. If air tightness is required, carry out the air tightness inspection after installation. For screwing Sensor into thermowell, be sure to tighten at job site. CAUTION Please note bending portion and bending radius of metal sheathed mineral insulated type Temperature sensors. Material can be bent to a minimum radius of 2 times of sheath diameter, any bending tighter than that, will fracture the sheath. On bending at job site, bend to a radius of around 5 times of sheath diameter. However, do not bend near the sleeve. The conductor wire inside of the sheath is pulled by bend and it may be disconnected near the connecting part inside the sleeve.